Thin film transistor (TFT) array substrate, liquid crystal display panel and method for repairing distributed lines

Abstract

A TFT array substrate, a liquid crystal display panel and a wire repairing method. The TFT array substrate comprises a scan line for providing a scan signal and a data line for providing a data signal. A wiring area (20) is set outside a pixel region (10) defined by the scan line and the data line. The wiring area (20) has a wiring layer (30) formed of a scan wire and a data wire. On the wiring area (20), a repairing wire layer (40) in a looped shape and insulated from the wiring layer (30) is disposed below or above the wiring layer (30). When the scan wire or the data wire is disconnected, on the repair wire layer (40), a section of repairing wire (41) intersecting with both sides of a disconnection point of the disconnected scan wire or data wire is cut off, and is electrically connected to the disconnected scan wire or data wire at the intersection point through welding. The present invention repairs products to be scrapped during the liquid crystal display panel manufacturing process, so as to obtain accepted products, thereby reducing the amount of scrapped products, improving the manufacturing yield, and saving the manufacturing cost.

Description

technical field [0001] The invention relates to the technical field of liquid crystal displays, in particular to a TFT (Thin Film Transistor, thin film transistor) array substrate capable of repairing wiring, a liquid crystal display panel and a wiring repair method. Background technique [0002] The TFT liquid crystal display panel is mainly composed of a TFT array substrate, a color filter substrate, and a liquid crystal molecule layer filled in a box composed of the TFT array substrate and the color filter substrate. Scanning lines for providing scanning signals, data lines for providing data signals, and pixel areas defined by the scanning lines and data lines are formed on the TFT array substrate. Pixel electrodes are provided in the pixel area, and corresponding scanning lines and data lines are provided outside the pixel area. wiring area. The magnitude and on-off of the voltage on the pixel electrode are controlled by the gate connected to the horizontal scanning li...

AI Technical Summary

Problems solved by technology

However, it is difficult to ensure the circuit characteristics of the wiring in the extremely limited space of the LCD panel

It is even impossible to repair the wiring disconnection that occurs after the box forming process. At present, the product scrapping method is adopted, resulting in a large waste of products

[0005] Therefore, the existing wiring repair method reduces the yield rate of liquid crystal display panels, increases production costs and processing procedures, and cannot meet production requirements.

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